Improvement in pumps for raising water



'L PETERS, PNaO-LITNOGRAPHER, WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

ALEXANDER STIVEN, OF NEV YORK, N. Y.,-

IMPROVEMENT IN PUMPS FOR RAISING WATER.

l Specication forming part of Letters Patent No. 6,927, dated December4, 1849.

To @ZZ whom it may concern.:

Be it known that I, ALEXANDER STivEN, of the city, county, and State ofNew York, have invented a new and Improved Mode of Lifting and ForcingLiquids, Air, Gas, and Steam; and l do hereby declare that the followingis a full and exact description thereof in connection with the drawingsannexed.

Figures 1, 2, and 8 represent, respectively, a side and front elevationand a plan of the machine for lifting and forcing so far as required torepresent and explain my invention, and I refer to the drawings as partof my specification.

A, Fig. l, is the external casing or disk which forms the barrel orcylinder of the pump, having an oblong parallel slot E cutting theinside diameter of cylinder A.

B, Fig. 1, is an annular ring or piston with a radial arm F extendingbeyond its extreme diameter in a line with the center of the ring.

C, Fig. l, is a shaftwith an eccentric or cam G fixed upon it.

Fig. 4 is a view of the eccentric and shaft detached from the pump. Fig.5 is a View of the annular and radial arm detached from the pump. Figs.l, 2, and 3 are correct representations of the model accompanying thedrawings and specification. Fig. 6 is a section of force-pump withair-vessel. Fig. 7 is an exterior side elevation of force-pump. Fig. 8is a front elevation of the same.

The shaft C is fitted in journals on the side plates of external casing.The eccentric or cam G is iitted into the inside diameter of annularring or piston B. The end of the radial arm F is fitted into slot E ofcylinder A, which forms an abutment or sliding partition between theexit and entrance, thereby preventing any liquid or air to pass by inthe act of forcing and lifting. The exit and entrance must be as closeto one another as the slot E will admit. The section of Fig. 6 shows theposition of exit and entrance. The length of annular ring and radial armis the length of cylinder A and fitted so as to be air and water tight.The outside diameter of annular ring or piston bears against the insidediameter of cylinder A, so as to be air and water tight. The annularring must be less than the inside diameter of cylinder A. The differencebetween the interior diameter of cylinder A and the external diameter ofpiston B is the quantity of water to be lifted at each revolution. Thespace contained between the two diameters gives the quantity of waterlifted at each revolution.

By giving motion to the eccentric shaft (by any known mode of driving,such as steam, water, or hand power) the annular ring or piston will becaused to roll along the inside diameter of cylinder A. The radial armacting as a movable fulcrum will rise and fall in the slot E of cylinderA, so as to accommodate every position the annular ring or piston isplaced into, and thereby a continued vacuum will be formed, so as tolift water from required depths. Likewise for force-pumps a continuedforce will be kept up, so as to force water to required heights.

By placing two or more eccentrics on the same shaft any number of pumpscan be Worked at the saine time.

The pumps can be made of all known metals, composition of metals,india-rubber,

gutta-percha, and oth er flexible material, likewise of wood.

The annular ring, with radial arm and slot in cylinder immediatelybetween the exit and entrance and giving` motion to the annular ring orpiston by an eccentric or cam, and the whole operating conjointlytogether, as particularly set forth and illustrated in my specifcationand drawings herewith.

ALEXANDER STIVEN. Witnesses:

ALEX. WATSON, JOHN WHITAKER;

